project(vtkITK)

#-----------------------------------------------------------------------------
cmake_minimum_required(VERSION 3.13.4)
#-----------------------------------------------------------------------------

# --------------------------------------------------------------------------
# Options
# --------------------------------------------------------------------------
if(NOT DEFINED BUILD_SHARED_LIBS)
  option(BUILD_SHARED_LIBS "Build with shared libraries." ON)
endif()

if(NOT DEFINED VTKITK_BUILD_DICOM_SUPPORT)
  option(VTKITK_BUILD_DICOM_SUPPORT "Build with DICOM support" ON)
endif()

# --------------------------------------------------------------------------
# Dependencies
# --------------------------------------------------------------------------

#
# VTK
#
#find_package(VTK REQUIRED)
#include(${VTK_USE_FILE})

#
# ITK
#
set(${PROJECT_NAME}_ITK_COMPONENTS
  ITKAnisotropicSmoothing
  ITKCommon
  ITKConnectedComponents
  ITKDistanceMap
  ITKIOGDCM
  ITKIOGE
  ITKIOImageBase
  ITKImageCompose
  ITKImageFilterBase
  ITKImageFunction
  ITKImageGrid
  ITKLabelMap
  ITKPath
  ITKRegionGrowing
  ITKThresholding
  ITKVTK
  # Needed for ITKv5 so that SimpleFastMutexLock is an alias to std::mutex in ITKv5
  # once ITKv4 is not supported, then we can simply replace SimpleFastMutexLock with std::mutex
  # the use the DeprecatedLib allows building without many preprocessor conditionals
  # for ITKv5/ITKv4 differences.
  ITKDeprecated
  )
find_package(ITK 5.0 COMPONENTS ${${PROJECT_NAME}_ITK_COMPONENTS} REQUIRED)
set(ITK_NO_IO_FACTORY_REGISTER_MANAGER 1) # See Libs/ITKFactoryRegistration/CMakeLists.txt
list(APPEND ITK_LIBRARIES ITKFactoryRegistration)
list(APPEND ITK_INCLUDE_DIRS ${ITKFactoryRegistration_INCLUDE_DIRS})
include(${ITK_USE_FILE})

# --------------------------------------------------------------------------
# Include dirs
# --------------------------------------------------------------------------
set(include_dirs
  ${CMAKE_CURRENT_SOURCE_DIR}
  ${CMAKE_CURRENT_BINARY_DIR}
  )
include_directories(${include_dirs})

# --------------------------------------------------------------------------
# Configure headers
# --------------------------------------------------------------------------
set(configure_header_file vtkITKConfigure.h)
configure_file(
  ${CMAKE_CURRENT_SOURCE_DIR}/${configure_header_file}.in
  ${CMAKE_CURRENT_BINARY_DIR}/${configure_header_file}
  )

# --------------------------------------------------------------------------
# Install headers
# --------------------------------------------------------------------------
if(NOT DEFINED ${PROJECT_NAME}_INSTALL_NO_DEVELOPMENT)
  set(${PROJECT_NAME}_INSTALL_NO_DEVELOPMENT ON)
endif()
if(NOT ${PROJECT_NAME}_INSTALL_NO_DEVELOPMENT)
  file(GLOB headers "${CMAKE_CURRENT_SOURCE_DIR}/*.(h|txx)")
  install(
    FILES ${headers} ${CMAKE_CURRENT_BINARY_DIR}/${configure_header_file}
    DESTINATION include/${PROJECT_NAME} COMPONENT Development)
endif()

# --------------------------------------------------------------------------
# Sources
# --------------------------------------------------------------------------
set(vtkITK_SRCS
  vtkITKNumericTraits.cxx
  vtkITKArchetypeDiffusionTensorImageReaderFile.cxx
  vtkITKArchetypeImageSeriesReader.cxx
  vtkITKArchetypeImageSeriesScalarReader.cxx
  vtkITKArchetypeImageSeriesVectorReaderFile.cxx
  vtkITKArchetypeImageSeriesVectorReaderSeries.cxx
  vtkITKImageThresholdCalculator.cxx
  vtkITKImageWriter.cxx
  vtkITKImageToImageFilter.h
  vtkITKImageToImageFilterFF.h
  vtkITKImageToImageFilterSS.h
  vtkITKGradientAnisotropicDiffusionImageFilter.cxx
  vtkITKDistanceTransform.cxx
  vtkITKLevelTracingImageFilter.cxx
  vtkITKLevelTracing3DImageFilter.cxx
  vtkITKWandImageFilter.cxx
  vtkITKNewOtsuThresholdImageFilter.cxx
  vtkITKTimeSeriesDatabase.cxx
  vtkITKIslandMath.cxx
  vtkITKGrowCutSegmentationImageFilter.cxx
  vtkITKMorphologicalContourInterpolator.cxx
  )

# these types are never instantiated, so they don't
# get included in the vtkITK lib file (hence they
# can't be wrapped for python)
set(vtkITK_SRCS_not_used
  vtkITKImageToImageFilter2DFF.h
  vtkITKImageToImageFilterFUL.h
  vtkITKImageToImageFilterULUL.h
  vtkITKImageToImageFilterUSUL.h
  vtkITKImageToImageFilterUSUS.h
  vtkITKImageToImageFilterUSF.h
  )

# Abstract/pure virtual classes

#set_source_files_properties(
#  ABSTRACT
#  )

# Helper classes

set_source_files_properties(
  vtkITKNumericTraits.cxx
  WRAP_EXCLUDE
  )

# --------------------------------------------------------------------------
# Build library
# --------------------------------------------------------------------------
set(lib_name ${PROJECT_NAME})

set(srcs ${vtkITK_SRCS})
add_library(${lib_name} ${srcs})

set(libs
  ${ITK_LIBRARIES}
  ${VTK_LIBRARIES}
  )
target_link_libraries(${lib_name} ${libs})

# Apply user-defined properties to the library target.
if(Slicer_LIBRARY_PROPERTIES)
  set_target_properties(${lib_name} PROPERTIES ${Slicer_LIBRARY_PROPERTIES})
endif()

# --------------------------------------------------------------------------
# Folder
# --------------------------------------------------------------------------
if(NOT DEFINED ${PROJECT_NAME}_FOLDER)
  set(${PROJECT_NAME}_FOLDER ${PROJECT_NAME})
endif()
if(NOT "${${PROJECT_NAME}_FOLDER}" STREQUAL "")
  set_target_properties(${lib_name} PROPERTIES FOLDER ${${PROJECT_NAME}_FOLDER})
endif()

# --------------------------------------------------------------------------
# Export target
# --------------------------------------------------------------------------
if(NOT DEFINED ${PROJECT_NAME}_EXPORT_FILE)
  set(${PROJECT_NAME}_EXPORT_FILE ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Targets.cmake)
endif()
export(TARGETS ${lib_name} APPEND FILE ${${PROJECT_NAME}_EXPORT_FILE})

# --------------------------------------------------------------------------
# Install library
# --------------------------------------------------------------------------
if(NOT DEFINED ${PROJECT_NAME}_INSTALL_BIN_DIR)
  set(${PROJECT_NAME}_INSTALL_BIN_DIR bin)
endif()
if(NOT DEFINED ${PROJECT_NAME}_INSTALL_LIB_DIR)
  set(${PROJECT_NAME}_INSTALL_LIB_DIR lib/${PROJECT_NAME})
endif()

install(TARGETS ${lib_name}
  RUNTIME DESTINATION ${${PROJECT_NAME}_INSTALL_BIN_DIR} COMPONENT RuntimeLibraries
  LIBRARY DESTINATION ${${PROJECT_NAME}_INSTALL_LIB_DIR} COMPONENT RuntimeLibraries
  ARCHIVE DESTINATION ${${PROJECT_NAME}_INSTALL_LIB_DIR} COMPONENT Development
  )

# --------------------------------------------------------------------------
# Python Wrapping
# --------------------------------------------------------------------------
if(VTK_WRAP_PYTHON)
  vtkMacroKitPythonWrap(
    KIT_NAME ${lib_name}
    KIT_SRCS ${vtkITK_SRCS}
    KIT_INSTALL_BIN_DIR ${${PROJECT_NAME}_INSTALL_BIN_DIR}
    KIT_INSTALL_LIB_DIR ${${PROJECT_NAME}_INSTALL_LIB_DIR}
    )
  # Export target
  export(TARGETS ${lib_name}Python ${lib_name}PythonD APPEND FILE ${${PROJECT_NAME}_EXPORT_FILE})
  # Folder
  if(NOT "${${PROJECT_NAME}_FOLDER}" STREQUAL "")
    set_target_properties(${lib_name}Python PROPERTIES FOLDER ${${PROJECT_NAME}_FOLDER})
    set_target_properties(${lib_name}PythonD PROPERTIES FOLDER ${${PROJECT_NAME}_FOLDER})
    if(TARGET ${lib_name}Hierarchy)
      set_target_properties(${lib_name}Hierarchy PROPERTIES FOLDER ${${PROJECT_NAME}_FOLDER})
    endif()
  endif()
endif()

# --------------------------------------------------------------------------
# Testing (requires some of the examples)
# --------------------------------------------------------------------------
if(BUILD_TESTING)
  add_subdirectory(Testing)
endif()

# --------------------------------------------------------------------------
# Set INCLUDE_DIRS variable
# --------------------------------------------------------------------------
set(${PROJECT_NAME}_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}
  CACHE INTERNAL "${PROJECT_NAME} include dirs" FORCE)

# --------------------------------------------------------------------------
# Configure support file
# --------------------------------------------------------------------------
configure_file(
  ${CMAKE_CURRENT_SOURCE_DIR}/vtkITKConfig.cmake.in
  ${CMAKE_CURRENT_BINARY_DIR}/vtkITKConfig.cmake
  )
